i have added all the necessary jars including ant-antlr-1.6.5.jar asm.jar asm-attrs.jar cgilib-2.1.3.jar commons-collections-2.1.1.jar commons-logging-1.0.4.jar dom4j-1.6.1.jar jta.jar log4j-1.2.11.jar and slf4j-1.5.0.jar also